Datasheet Linear Technology LTC3803HS6-5#TRPBF — Datenblatt

Hersteller	Linear Technology
Serie	LTC3803-5
Artikelnummer	LTC3803HS6-5#TRPBF

Konstantfrequenz-Strommodus-Flyback-DC / DC-Controller in ThinSOT

Datenblätter

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PDF, 171 Kb, Sprache: en, Datei hochgeladen: Sep 23, 2017, Seiten: 16
Constant Frequency Current Mode Flyback DC/DC Controller in ThinSOT

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Preise

Verpackung

Package	SOT-23
Package Code	S6
Package Index	05-08-1636

Parameter

Design Tools	LTspice File
Export Control	no
Frequency	200 kHz
Integrated Inductor	no
Isupply	0.24 mA
Monolithic	no
Number of Outputs	1
Operating Temperature Range	-40 to 125 °C
Polyphase	no
Switch Current	2 A
Synchronous	no
Topology	Flyback
Vin Max	75 V
Vin Min	5.7 V
Vout Maximum	3, 5, 12 and higher
Vout Min	0.8 V

Öko-Plan

RoHS

Compliant

Artikel

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Simple, Fast Pulse Source Outpaces Expensive Lab Equipment &mdash LT Journal
PDF, 91 Kb, Datei veröffentlicht: Aug 11, 2016
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design ideas Simple, Fast Pulse Source Outpaces Expensive Lab
Equipment
Mitchell Lee A source of fast pulse edges, simulating a step function, is often useful in making lab
measurements of one kind or another. For example, it is possible to evaluate the rise
time of RG-58/U or other coaxial cables using lengths of only 10 to 20 feet if an edge
rate on the order of 1nsвЂ“2ns is available. The ubiquitous HP8012B pulse generator,
a workhorse in many labs, falls short at 5ns, and is not quite fast enough for the
task at hand. The gate drive output rise and fall times of certain switching regulator
controllers are faster than 2ns, making such devices potentially ideal pulse sources.
Figure 1 shows a simple implementation
using an LTC3803 constant frequency
flyback controller. The controller selfclocks at 200kHz; applying a sample
of the output to the SENSE pin causes
the device to operate at its minimum
duty cycle, producing a 300ns output
pulse width. Supply bypassing is important, as the output delivers upwards
of 180m A into a 50О© load. The 10Вµ F
bypass and 200О© decoupling components minimize pulse top aberration
without compromising droop. prime importance, back termination (as
shown) is recommended to suppress triple
transit echos by absorbing reflections from
cabling and the far-end termination. Back
termination is also useful when driving …

Modellreihe

Serie: LTC3803-5 (12)

LTC3803ES6-5#PBF LTC3803ES6-5#TRMPBF LTC3803ES6-5#TRPBF LTC3803HS6-5#PBF LTC3803HS6-5#TRMPBF LTC3803HS6-5#TRPBF LTC3803IS6-5#PBF LTC3803IS6-5#TRMPBF LTC3803IS6-5#TRPBF LTC3803MPS6-5#PBF LTC3803MPS6-5#TRMPBF LTC3803MPS6-5#TRPBF

Herstellerklassifikation

Power Management > Switching Regulator > Flyback, Forward and Isolated Controllers
Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators

Andere Namen:

LTC3803HS6-5TRPBF, LTC3803HS6-5 TRPBF, LTC3803HS65#TRPBF, LTC3803HS6 5#TRPBF